airlines have delayed and canceled flights in and out of millimeter hubs, including dallas, chicago and cleveland. >> it's just--you have to it be happy, right? >> reporter: now, this storm is part of the same system that hit a few days ago. more on the national weather picture coming up at 5:30 on the cbs evening news. >>> in other news, in upstate new york, police say that that man who killed two firefighters left behind a note detailing his intentions. they found another body which could be the gunman's missing sister. the killer used the same weapon as the gunman in thenewtown school shooting. >> reporter: snow-covered flowers sit in a make shift memorial for two firefighters shot and killed in the job. ex-con william spangler shot down two firefight israel before taking his own life. he left a note. >> the note does not explain why he wanted to kill. >> we are being shot at. multiple fires in town. multiple fires shot. >> reporter: he had three guns, including a bushmaster 323, the same kind of weapon used in the connecticut school shooting. four people were killed, two died. seven